Support touch icon in FaviconHelper

chrome/browser/icon_delegate.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/icon_delegate.h"
+
+IconDelegate::IconDelegate() {
+}
+
+IconDelegate::~IconDelegate() {
+}
+
+void IconDelegate::UpdateFaviconImageData(
+    NavigationEntry* entry,
+    scoped_refptr<RefCountedMemory> data) {
+  SkBitmap image;
+  gfx::PNGCodec::Decode(data->front(), data->size(), &image);
+  UpdateFaviconImageData(entry, image);
+}